CN204250075U - Single magnet type permanent magnet track brakes device - Google Patents
Single magnet type permanent magnet track brakes device Download PDFInfo
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- CN204250075U CN204250075U CN201420709482.3U CN201420709482U CN204250075U CN 204250075 U CN204250075 U CN 204250075U CN 201420709482 U CN201420709482 U CN 201420709482U CN 204250075 U CN204250075 U CN 204250075U
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- permanent magnet
- magnet
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- track
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Abstract
The utility model relates to rail transit train technical field, disclose a kind of single magnet type permanent magnet track brakes device, comprise bogie truck, a brake magnet is connected by force transmission mechanism below described bogie truck, a distance is had between described brake magnet and the rail of track, described brake magnet comprises both sides side plate, the length direction of described side plate is identical with track alignment, cover plate is provided with above described side plate, described side plate, through hole is formed between cover plate, described side plate is permeability magnetic material, described cover plate is non-magnet material, strip shape permanent magnet is set in described through hole, the magnetic pole of described permanent magnet is located thereon lower surface, the below of described side plate arranges pole shoe, non-magnetic space is formed in the middle of described pole shoe, in one end of described side plate, actuating device is set, described actuating device drives described permanent magnet to rotate.The utility model is changed by the direction of magnetic field of permanent magnet, realizes the control of the magnetic strength power of magnet and rail, simple and reliable.
Description
Technical field
The utility model relates to rail transit train technical field, particularly relates to a kind of single magnet type permanent magnet track brakes device.
Background technology
Track train in traffic design and operation management, the always extremely important and problem of complexity of train braking problem.Train, running in kind, in order to ensure safety, must guarantee that train can in the stopping distance scope inside brake of regulation.
Track train brake mode generally has electropneumatic brake, electro-hydraulic brake and vacuum brake etc.Above-mentioned brake mode all will realize the allotment of propulsion source through control unit by electromagnetic valve or vacuum pump energy, then braking function is realized by foundation brake actuating unit, its braking procedure is subject to the delay of electric conversion, the conversion of electric liquid, air effect and physical construction, braking response is slow, and brake accuracy is affected.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of single magnet type permanent magnet track brakes device, realizes the quick effective brake to train.
The technical scheme that the utility model is taked is:
A kind of single magnet type permanent magnet track brakes device, comprise bogie truck, it is characterized in that, a brake magnet is connected by force transmission mechanism below described bogie truck, a distance is had between described brake magnet and the rail of track, described brake magnet comprises both sides side plate, the length direction of described side plate is identical with track alignment, cover plate is provided with above described side plate, described side plate, through hole is formed between cover plate, described side plate is permeability magnetic material, described cover plate is non-magnet material, strip shape permanent magnet is set in described through hole, the magnetic pole of described permanent magnet is located thereon lower surface, the below of described side plate arranges pole shoe, non-magnetic space is formed in the middle of described pole shoe, in one end of described side plate, actuating device is set, described actuating device drives described permanent magnet to rotate.
Further, described permanent magnet is arranged in a low-carbon (LC) steel column, forms magnetic axis, and described steel column is arranged in the through hole in the middle of described side plate, and described steel column and described through-hole wall leave air gap.
Further, described both sides side plate is symmetrical arranged.
Further, below described pole shoe, arrange magnetic isolation plate, described magnetic isolation plate is non-magnet material.
Further, described magnetic isolation plate is ceramic base synthetic material.
Further, described permanent magnet is neodymium-iron-boron magnetic material.
Further: described force transmission mechanism is the back-up block of non-magnet material.
The beneficial effects of the utility model are:
(1) changed by the direction of magnetic field of permanent magnet, realize the control of the magnetic field force of magnet and rail, simple and reliable;
(2) realized the rotation of magnet by driving arrangement, structure is simple, easy to operate;
(3) magnetic isolation plate is as the introducing of wear material, promotes effective friction brake force, and makes pole shoe life;
(4) magnet is arranged in dead-soft steel, solves the precision problem of neodymium iron boron sintering process.
Accompanying drawing explanation
Accompanying drawing 1 is integral structure schematic diagram of the present utility model;
Accompanying drawing 2 is perspective view of the present utility model;
Accompanying drawing 3 is that permanent magnet is positioned at level attitude and magnetic line of force schematic diagram thereof;
Accompanying drawing 4 is that permanent magnet turns over the position after an angle and magnetic line of force schematic diagram thereof;
Accompanying drawing 5 is that permanent magnet turns over the position after 90 degree and magnetic line of force schematic diagram thereof.
Label in accompanying drawing is respectively:
1. bogie truck; 2. force transmission mechanism;
3. brake magnet; 4. rail;
5. side plate; 6. cover plate;
7. permanent magnet; 8. steel column;
9. pole shoe; 10. the end every;
11. actuating devices; 12. hitches;
13. magnetic line of forces.
Detailed description of the invention
Elaborate below in conjunction with the detailed description of the invention of accompanying drawing to the utility model single magnet type permanent magnet track brakes device.
See accompanying drawing 1, 2, single magnet type permanent magnet track brakes device, relate to circuit, magnetic field, friction material and mechanical moving parts, comprise the brake magnet 3 that bogie truck 1 and below thereof are connected by force transmission mechanism 2, a distance is had between the rail 4 of brake magnet 3 and track, brake magnet 3 comprises both sides side plate 5, the length direction of side plate 5 is identical with track alignment, cover plate 6 is provided with above side plate 5, side plate 5, through hole is formed between cover plate 6, side plate 5 is permeability magnetic material, cover plate 6 is non-magnet material, permanent magnet 7 is arranged in a low-carbon (LC) steel column 8, form magnetic axis, steel column 8 and through-hole wall leave air gap.The magnetic pole of permanent magnet 7 is located thereon lower surface, and the below of side plate 5 arranges pole shoe 9, and form the non-magnetic end in the middle of pole shoe 9 every 10, arrange actuating device 11 in one end of side plate 5, actuating device 11 drives permanent magnet 7 to rotate.
Brake magnet 3 is required power when device provides absorption rail 4 and hold mode; Actuating device 11 utilizes hydraulic transmission or motor to drive, and controls the rotation of magnetic axis; Pole shoe 9 both as permeability magnetic material for mechanism provides magnetic circuit passage, again as wear material, form friction pair with rail 4; The braking force that pole shoe 9 and this friction pair of rail 4 are formed is delivered on bogie truck 1 by force transmission mechanism 2, thus forms the braking force of train; The hitch 12 of train controls or the working position of equalizing gear, inoperative position.
Magnetic isolation plate is manufactured with diamagnetism friction material below pole shoe 9, magnetic isolation plate is except the effect as the fastening pole shoe 9 of framework, also can prevent because the rub metal powder that comes off of pole shoe 9 during braking and rail 4 is fallen the leakage field caused in pole shoe 9 gap and increased, thus avoid the work efficiency reducing permanent magnet track brakes device because the reduction of pole shoe 9 adsorption affinity.In addition, magnetic isolation plate, as friction material, together can form friction pair with rail 4 with pole shoe 9, can improve friction coefficient thus improve braking force, can obtain higher electromagnetic rail brake device work efficiency.Utilize ceramic base synthetic material in the design, both there is good frictional behaviour, again because of its without iron-based not magnetic conduction.
The magnetic axis, side plate 5, cover plate 6, magnetic isolation plate etc. of brake magnet 3 are topmost movable parties in whole mechanism.Wherein magnetic axis is as propulsion source; Side plate 5 generally adopts low-carbon steel material, both as the bracing frame of mechanism, again for mechanism provides magnetic circuit passage; Cover plate 6 was generally made up of the non-magnet material such as aluminum alloy or corrosion-resistant steel every 10 with the end in pole shoe 9, as the transmission carrier of support structure and power.
The principle of work of single magnet type permanent magnet track brakes device is as follows: after receiving braking instruction, actuating device 11 action, controls magnetic axis 90-degree rotation, and permanent magnet forms open circuit, a magnetization merit part is stored in permanent-magnet material inside, and another part is stored in the space near two magnetic poles with the form of micro-.Magnetic axis, side plate 5, pole shoe 9, a. g., track form outside C/LOOP, the suction of permanent magnet to rail 4 overcomes the confining force of suspension gear, move downward and be adsorbed onto on rail 4, because of reducing of a. g., larger suction compresses pole shoe 9 and rail 4, make it carry out friction and form braking force, by force transmission mechanism 2 by power transmission, finally make the kinetic transformation of train be heat energy.Receive after alleviating instruction, actuating device 11 action, control magnetic axis 90-degree rotation, permanent magnet forms inner closed loop, and magnetization merit is stored in permanent-magnet material inside with the form of magnetic energy product (BH).Magnetic axis, side plate 5 form inner closed loop, and permanent magnet is zero to the suction of rail 4 substantially, and the confining force of hitch 12 overcomes the gravity of device, and upward movement also departs from rail 4, and finally make it to remain on the position apart from rail level about 7mm.
Below the magnetic structure of permanent magnet in brake equipment 7 and principle of work are described.
See accompanying drawing 3, when permanent magnet 7 is in horizontality, and magnetic circuit process unloaded state, its magnetic line of force 13 realizes magnetic force loop by the side plate 5 of magnetic axis both sides, circuit process is N pole → axis body → side plate → S pole → N pole, and do not have magnetic line of force 13 from side plate 5 surface out, magnetic line of force 13 is without pole shoe 9, suction is not produced to rail 4, realizes unloading.
See accompanying drawing 4, when permanent magnet 7 rotates an angle under the driving of actuating device 11, part magnetic line of force 13 produces loop by side plate 5, pole shoe 9 and rail 4, makes the attractive force between pole shoe 9 and rail 4 increasing.
See accompanying drawing 5, when permanent magnet 7 turns to 90 degree of positions, the magnetic line of force 13 of the overwhelming majority is by pole shoe 9 and rail 4, and form the loop of N pole → axis body → side plate 5 → pole shoe 9 → rail 4 → pole shoe 9 → side plate 5 → axis body → S pole → N pole, pole shoe 9 will firmly adsorb rail 4.When pole shoe 9 is in loading condition, rotating shaft must lock, and guarantees safety.
Below be only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a single magnet type permanent magnet track brakes device, comprise bogie truck, it is characterized in that: below described bogie truck, connect a brake magnet by force transmission mechanism, a distance is had between described brake magnet and the rail of track, described brake magnet comprises both sides side plate, the length direction of described side plate is identical with track alignment, cover plate is provided with above described side plate, described side plate, through hole is formed between cover plate, described side plate is permeability magnetic material, described cover plate is non-magnet material, strip shape permanent magnet is set in described through hole, the magnetic pole of described permanent magnet is located thereon lower surface, the below of described side plate arranges pole shoe, non-magnetic space is formed in the middle of described pole shoe, in one end of described side plate, actuating device is set, described actuating device drives described permanent magnet to rotate.
2. single magnet type permanent magnet track brakes device according to claim 1, it is characterized in that: described permanent magnet is arranged in a low-carbon (LC) steel column, form magnetic axis, described steel column is arranged in the through hole in the middle of described side plate, and described steel column and described through-hole wall leave air gap.
3. single magnet type permanent magnet track brakes device according to claim 1, is characterized in that: described both sides side plate is symmetrical arranged.
4. single magnet type permanent magnet track brakes device according to any one of claim 1 to 3, is characterized in that: below described pole shoe, arrange magnetic isolation plate, and described magnetic isolation plate is non-magnet material.
5. single magnet type permanent magnet track brakes device according to claim 4, is characterized in that: described magnetic isolation plate is ceramic base synthetic material.
6. single magnet type permanent magnet track brakes device according to any one of claim 1 to 3, is characterized in that: described permanent magnet is neodymium-iron-boron magnetic material.
7. single magnet type permanent magnet track brakes device according to any one of claim 1 to 3, is characterized in that: described force transmission mechanism is the back-up block of non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709482.3U CN204250075U (en) | 2014-11-24 | 2014-11-24 | Single magnet type permanent magnet track brakes device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709482.3U CN204250075U (en) | 2014-11-24 | 2014-11-24 | Single magnet type permanent magnet track brakes device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204250075U true CN204250075U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420709482.3U Active CN204250075U (en) | 2014-11-24 | 2014-11-24 | Single magnet type permanent magnet track brakes device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204250075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494635A (en) * | 2014-11-24 | 2015-04-08 | 上海庞丰交通设备科技有限公司 | Single magnetic type permanent magnet track braking device |
-
2014
- 2014-11-24 CN CN201420709482.3U patent/CN204250075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104494635A (en) * | 2014-11-24 | 2015-04-08 | 上海庞丰交通设备科技有限公司 | Single magnetic type permanent magnet track braking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201802 Jiading District, Shanghai South Road, No. 500, No. 12 Patentee after: China railway traffic equipment (Shanghai) Co., Ltd. Address before: 201802 Jiading District, Shanghai South Road, No. 500, No. 12 Patentee before: Shanghai Pangfeng Traffic Equipment Technology Co., Ltd. |